[all-commits] [llvm/llvm-project] 62994c: [VPlan] Also introduce explicit broadcasts for val...

[Florian Hahn via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 62994c3291239f3d11f958d002319b2bd6eddbc9
      https://github.com/llvm/llvm-project/commit/62994c3291239f3d11f958d002319b2bd6eddbc9
  Author: Florian Hahn <flo at fhahn.com>
  Date:   2025-03-12 (Wed, 12 Mar 2025)

  Changed paths:
    M llvm/lib/Transforms/Vectorize/LoopVectorize.cpp
    M llvm/lib/Transforms/Vectorize/VPlanTransforms.cpp
    M llvm/lib/Transforms/Vectorize/VPlanTransforms.h
    M llvm/test/Transforms/LoopVectorize/RISCV/illegal-type.ll
    M llvm/test/Transforms/LoopVectorize/X86/epilog-vectorization-inductions.ll
    M llvm/test/Transforms/LoopVectorize/X86/induction-step.ll
    A llvm/test/Transforms/LoopVectorize/expand-scev-after-invoke.ll
    M llvm/test/Transforms/LoopVectorize/float-induction.ll
    M llvm/test/Transforms/LoopVectorize/induction-step.ll
    M llvm/test/Transforms/LoopVectorize/induction.ll

  Log Message:
  -----------
  [VPlan] Also introduce explicit broadcasts for values from entry VPBB.

Update and generalize materializeBroadcasts to also introduce explicit
broadcasts for VPValues defined in the Plans Entry block.

This fixes a crash when trying to insert the broadcasts generated by
VPTransformState::get after the generating instruction, which isn't
possible after invoke instructions.

Fixes https://github.com/llvm/llvm-project/issues/128838.



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